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Discs, Rotors, and Hardware for Mazda RX-7

Having proper functioning brakes for a Mazda RX-7 is important to the safety and well-being of the automobile occupants, other individuals on the road, and the vehicle itself. It is necessary to know what each component is within the braking system and what to look for should there be signs that repairs and replacements are needed. This gives you the opportunity to make a more informed decision on what parts will deliver the results you are seeking.

How does a Mazda RX-7 disc brake system work?

A disc brake system functions by the master cylinder sending brake fluid to the different calipers located at each wheel point of the automobile. The pressurized fluid presses pistons within the caliper outward, forcing the brake pads to grab onto the surface of the disc or rotor. This action causes the vehicle to slow down in speed or come to a stop.

When should the brake pads be changed?

Brake pads push against the rotor or disc surface to reduce the speed an automobile is traveling. When the brake pads begin to fail, this can compromise the safety of occupants of the automobile and the car itself. Common signs should warn you that the brake pads need to be changed.

  • An audible grinding noise is produced when the brakes are applied in the vehicle.
  • The amount of pressure needed on the brake pedal is increased to stop or slow the automobile.
  • The pads are one-quarter inch in thickness or less.
What are slotted and drilled brake rotors?

Slotted and drilled brake rotors are rotors that have a pattern either drilled into them or grooves designed into the surface of the disc. These designs allow gases build up each time the brake pad comes into contact with the surface of the rotor to escape. This type of rotor prevents premature wear from occurring and aids in keeping the brake components from heating up.

When do Mazda RX-7 brake rotors need to be replaced?

Rotors experience some degree of wear each time the brake pads make contact with the disc surface. Here are the most common signs that the brake rotors should be replaced.

  • When the inner to outer friction surface has a thickness measurement that is smaller than the recommended measurement cast into the rotor flange
  • When visible cracks are seen on the rotor
  • When excessive pulsation is felt when the brakes are engaged and the problem cannot be eliminated by machining the disc
What is the purpose of a master cylinder?

The master cylinder is a major component of the braking system in an automobile. This part has the ability to convert the pressure placed on the brake pedal of the automobile into hydraulic pressure. This occurs by the master cylinder feeding the brake fluid that passes through it into the brake circuit and acting as a control by the amount of mechanical force placed on the pedal. A master cylinder is used on both disc and drum braking systems.